Use Safe software's tool:
http://www.mp2kmag.com/articles.asp?ArticleID=63 or the free developer sample:
http://www.mp2kmag.com/news.asp?NewsID=20 (you would need to export your tab files to mif/mid first).
To get a MapPoint map into MapInfo, first create a screenshot or image by doing a Save As HTML, then open and register it in MapInfo.. be sure to follow all copyright rules. Also, you cannot get the streets from MapPoint into MapInfo as vector format.
Eric
keywords: mapinfo, tab, copyright, vector, raster, spatial data importer